[Event "IBM"]
[Site "Amsterdam"]
[Date "1971.07.19"]
[Round "6"]
[White "Adorjan, Andras"]
[Black "Langeweg, Kick"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. Bf4 e5 7. Be3 a6 8. N5c3 Nf6 9. Bg5 Be7 10. Bxf6 Bxf6 11. Nd5 Bg5 12. Na3 Be6 1/2-1/2